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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1194960Generated: November 1, 2026

Diethyl Ether → HCID 18631453, compound

https://huagongshe.com/reaction/1194960

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl EtherHCID 3283—
ReactantHCID 11765114HCID 11765114—
ReactantAcetic Acid Mixture with Hydrobromic AcidHCID 21893785—
SolventAcetic AcidHCID 176—
ProductHCID 18631453HCID 18631453—

Reaction Steps

In 2 ml of acetic acid is dissolved 0.35 g of N-[N-[(R)-5-(1-benzyloxycarbonyl-4-piperidyl)-1-ethoxycarbonylpentyl]-L-alanyl]-N-(indan-2-yl)glycine tert-butyl ester, and 2 ml of 30% hydrogen bromide-acetic acid solution is added to the solution, followed by standing at room temperature for 1 hour. 50 ml of ethyl ether is added to the reaction mixture, followed by shaking, and the supernatant layer is removed by decantation. The colorless precipitate is rinsed with ethyl ether and dried under reduced pressure to give 0.3 g of N-[N-[(R)-1-ethoxycarbonyl-5-(4-piperidyl)pentyl]-L-alanyl]-N-(indan-2-yl)glycine.dihydrobromide as a colorless powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04816466
Source datasetuspto-grants-1989_03
ORD IDord-c70a5fccd1374303a2312c7a773a00a2
Source noteuspto-grants-1989_03